Program Keys - Beckman Coulter Allegra X-30 Series Instructions For Use Manual

Description
Controls and Indicators
Figure 1.5 Program Keys
▲ ▼
(cursor keys)
ENTER
RPM
RCF
ROTOR
TIME
TEMP
(refrigerated
models only)
ACCEL
DECEL
1-6
The cursor keys are up and down arrow keys (▲ and ▼), which can be pressed to
increment values up or down when setting parameters.
Parameter (speed, time, temperature, and acceleration or deceleration curve)
changes made while a run is in progress must be verified by pressing the ENTER key.
When the RPM key is pressed the last digit in the SPEED display (0) flashes, indicating
that the speed can be entered in increments of 100 revolutions per minute (rpm).
After the run starts, the actual rpm of the rotor is displayed.
The RCF key can be used to select the speed setting by required relative centrifugal
field (RCF). The corresponding rpm is automatically calculated and displayed during
the run. If the RCF key is pressed during the run, the RCF value is shown in the SPEED
display.
The centrifuge memory contains a list of the rotors that can be used, together with
default parameters for each rotor. When the ROTOR key is pressed the number of the
rotor used in the previous run is shown on the SPEED display. The rotor list can be
scrolled through, using the cursor keys, until the required rotor number appears.
The TIME key is used to select the run duration. When the TIME key is pressed, the
last digit on the TIME display flashes, indicating that the time can be entered with the
cursor keys.
• Timed run — Run time up to 9 hours and 59 minutes can be set. If the minutes
parameter exceeds 59, it is automatically converted into hours.
• Continuous run — If a run time of less than 1 minute or more than 9 hours and
59 minutes is selected, continuous operation is activated. Time is not counted
down, and the run continues until the STOP key is pressed.
The TEMP key is used to select run temperature on refrigerated model centrifuges.
When the TEMP key is pressed, the TEMP°C display flashes, indicating that the
temperature can be entered with the cursor keys. Temperature can be set between
–20 and +40°C. The operating temperature range is +2°C to +40°C, depending on
the rotor used and the speed selected.
The ACCEL key is used to select acceleration rates that protect delicate gradients.
When the ACCEL key is pressed, the ACC/DEC display flashes, indicating that one of
ten preset rates can be entered with the cursor keys (9 is the fastest rate and 0 is the
slowest rate). Acceleration rates are described in
The DECEL key is used to select deceleration rates that maintain optimum separation
while protecting delicate gradients. When the DECEL key is pressed, the ACC/DEC
display flashes, indicating that one of ten preset rates can be entered with the cursor
keys (9 is the fastest rate and 0 is a no-brake coast to stop). Deceleration rate
selections are described in
Table 2.1
Table 2.1 in CHAPTER 2, Operation.
in CHAPTER 2, Operation.
PN B05529AE